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PostScript Encapsulation Knowledge [message #89665] Sat, 08 November 2014 09:46 Go to previous message
David Fanning is currently offline  David Fanning
Messages: 11724
Registered: August 2001
Senior Member
Folks,

I've run into an interesting little problem. I have reason to want to
know if the current PostScript device configuration is set up to make
encapsulated PostScript output or not.

I wrote a function that takes the output of the Help, /Device command
and parses the information contained in that output to discover the
"mode" of encapsulation. Here is the relevant line of output:

Mode: Portrait, Non-Encapsulated, EPSI Preview Disabled, Color Enabled

The problem is, in IDL 8.3.2 on Windows the encapsulation mode never
changes!

IDL> Set_Plot, 'PS'
IDL> Device, /Encapsulated
IDL> Help, /Device

Available Graphics Devices: CGM HP METAFILE NULL PCL PRINTER PS WIN Z
Current graphics device: PS
File: C:\IDL\tester.eps
Mode: Portrait, Non-Encapsulated, EPSI Preview Disabled, Color Enabled

I've confirmed the PostScript device *creates* an encapsulated
PostScript file when I configure the device like this. It just never
tells me it is doing so.

Is this the case in other versions of IDL, too?

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")

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